(To managers) Weifang Diesel Engine pumps wholesale headquarters 1. The injector solenoid valve repair: the Great Wall car GW2.8TC BOSCH common rail diesel systems, for example, analyze maintenance injector solenoid valve. Each injector solenoid valve has two terminals, each terminal and the corresponding terminal is connected to the ECU. Each injector has a unique IQA code (after replacing the injector, ECU needs to be amended). ⑴ outside line inspection: Electric multimeter with a barrier, were measured for each injector solenoid valve and ECU corresponding to the resistance value between the terminals, to determine whether there is a short circuit and external circuit fault;